CN219898446U - An ore crushing and grinding device - Google Patents

Abstract

The utility model discloses an ore crushing and grinding device, wherein a grinding hopper and a grinding body which are mutually matched are arranged in a grinding cavity. The inner cavity of the grinding bucket is in a shape of a round table with a large upper part and a small lower part, and a plurality of first grinding teeth are fixed on the inner wall of the grinding bucket; the side wall surface of the grinding body gradually reduces from top to bottom, and the upper end surface of the grinding body is in an upward convex shape; the outer wall of the grinding body is fixed with a plurality of second grinding teeth matched with the first grinding teeth. A plurality of blanking holes are arranged at the periphery of the grinding bucket chassis. The bottom side of the grinding body is arranged on the grinding hopper chassis through a bearing mechanism in a sitting way and is in transmission connection with a grinding motor fixedly arranged on the bottom side of the box body. The utility model integrates ore crushing, grinding and dust discharging into the same equipment, and grinding in the form of teeth can ensure that the materials are always in a moving state, can not be agglomerated or flaked, and has higher grinding efficiency.

Description

An ore crushing and grinding device

Technical field

The utility model relates to the technical field of mineral processing equipment, in particular to an ore crushing and grinding device.

Background technique

The use of crushing and grinding equipment to crush and grind ore is the front-end process of the mineral processing process. The main function of crushing and grinding is to crush and grind the ore (to a powder state), and then use flotation, magnetic separation or electric separation to separate useful minerals from gangue minerals to obtain smelting raw materials.

The Chinese utility model with authorization announcement number CN214346811U discloses “an ore grinding device”. Its grinding mechanism includes a screw driven by a first motor. Both ends of the screw are provided with screw sleeves. The bottom of the screw sleeve is fixedly connected with a telescopic rod. The bottom end of the telescopic rod is rotatably connected with a grinding roller. Arc-shaped grinding plates are fixedly connected to the lower parts of both sides of the inner cavity of the box. During operation, the first motor drives the screw to rotate, the screw drives the screw sleeve to move (laterally), and the screw sleeve drives the grinding roller to move (rotate) through the telescopic rod for grinding. Although this published patent realizes the crushing and grinding of ores in one device, it also has a dust exhaust mechanism. The dust generated during operation enters the dust collection box through the dust suction pipe connected to the fan, and passes through the pipe in the dust collection box. Entering the pulse dust collector for dust removal, it has the characteristics of multi-function, but due to design flaws, its grinding mechanism is difficult to meet production needs. Specifically, the ore material on the arc-shaped grinding plate is in a static state, and the material is ground by the horizontally reciprocating and rotating grinding roller. The material is easily squeezed and agglomerated (pieces), and it is difficult for the block or flake material to fall off. The opening (the through hole mentioned in the patent) falls because the size of the opening is designed to only allow powder to pass through. Therefore, the grinding efficiency of this disclosed patent is low and it is difficult to adapt to the needs of industrial production.

Utility model content

The technical problem to be solved by this utility model is to provide an ore crushing and grinding device, which integrates ore crushing, grinding and dust removal in the same equipment, and has higher working efficiency.

This utility model adopts the following technical solutions:

An ore crushing and grinding device includes a box with a feeding hopper installed at the upper end. A material receiving container is provided directly below the box. A crushing table is fixedly installed in the box. The crushing table is located in the box. The space above serves as the crushing chamber, and the space below the crushing table serves as the grinding chamber. A crushing roller driven by a crushing motor is installed in the middle space of the crushing table. A matching grinding bucket and grinding chamber are installed in the grinding chamber. body; the inner cavity of the grinding bucket is in the shape of a truncated cone with a larger upper part and a smaller lower part, and several first grinding teeth are fixed on the inner wall of the grinding bucket; the side wall surface of the grinding body gradually shrinks from top to bottom, and the upper end surface of the grinding body is upwardly convex. form; the outer wall of the grinding body is fixed with a number of second grinding teeth that match the first grinding teeth; a number of blanking holes are provided around the grinding bucket chassis; the bottom side of the grinding body is seated and installed on the position through a bearing mechanism The grinding bucket is on the chassis and is drivingly connected to the grinding motor fixedly installed on the bottom side of the box.

Preferably, the ore crushing and grinding device further includes a plurality of discharge pipes that pass through the bottom side wall of the box and are fixed to the bottom side wall of the box. The upper end of the discharge pipe is connected to the blanking pipe. The holes communicate with each other one by one, and the lower end penetrates deeply into the material receiving container.

Preferably, the distance between the grinding bucket and the grinding body gradually becomes smaller from top to bottom.

Preferably, the material receiving container is a closed container and has a ventilation hole for balancing internal air pressure, and a replaceable filter is installed at the ventilation hole for isolating dust.

Preferably, a fan is fixedly installed on the top of the box, the air inlet end of the fan is connected to a dust collecting hood located in the crushing cavity through a dust collection pipe, and the air outlet end is connected to a dust exhaust port located in the fan room. A dust exhaust pipe on the outside; the dust exhaust pipe is connected to a dust adsorption water tank or pool through a pipeline.

Compared with the existing technology, the utility model has the following beneficial effects:

When the utility model works, the ore first enters the crushing cavity inside the box through the feeding hopper, and the crushing rollers inside the crushing cavity crush the fallen ore. The crushed ore falls into the grinding bucket. The grinding motor drives the grinding body to rotate inside the grinding bucket. The ore is ground with the help of the first grinding teeth and the second grinding teeth. The ground ore powder passes through several circumferentially arranged discharges. The tube drops into the receiving container. This utility model integrates ore crushing, grinding and dust removal in one equipment, and the grinding in the form of teeth can ensure that the material is always in motion without clumping or flakes, and has higher grinding efficiency.

The dust generated by crushing and grinding is sucked into the fan room through the dust collecting hood and dust collecting pipe with the help of the wind force of the fan, and is sent to the dust adsorption water tank or pool through the dust exhaust pipe. The dust adsorption water tank or pool is filled with water to absorb dust. of water, dust is absorbed by the water.

Description of the drawings

Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

Figure 2 is an enlarged schematic view of part A of Figure 1;

Fig. 3 is an enlarged schematic view of part B in Fig. 1 .

In the picture: 1. Box, 2. Grinding bucket, 2-1. First grinding tooth, 2-2. Blanking hole, 3. Crushing roller, 4. Crushing table, 5. Dust cover, 6. Feeding Bucket, 7. Fan room, 8. Dust collection pipe, 9. Crushing chamber, 10. Grinding chamber, 11. Grinding body, 11-1. Second grinding tooth, 12. Grinding motor, 13. Legs, 14. Connector Material container, 15. Discharge pipe, 16. Dust exhaust pipe, 17. Fan.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments and drawings.

As shown in Figure 1, this embodiment of the ore crushing and grinding device includes a box 1 with a feed hopper 6 installed at the upper end and legs 13 installed at the lower end. A closed material receiving container 14 is provided directly below the box 1. The receiving container 14 is connected to a mineral powder transportation pipeline (the mineral powder transportation pipeline is omitted in the figure), and the mineral powder transportation pipeline transports ground mineral powder to a designated position with the help of pumping power. The material receiving container 14 is also provided with a vent hole for balancing the internal air pressure of the material receiving container 14. A replaceable multi-layer filter screen is installed at the vent hole (the vent hole and filter screen are omitted in the figure) for isolation. dust.

A crushing table 4 is fixedly installed in the box 1 . The space above the crushing table 4 in the box 1 serves as the crushing chamber 9 , and the space below the crushing table 4 serves as the grinding chamber 10 . There is a space in the middle of the crushing table 4 that connects the crushing chamber 9 and the grinding chamber 10. A crushing roller 3 driven by a crushing motor (the crushing motor and its transmission mechanism are omitted in the figure) is installed in this space. The crushing roller 3 includes The driving roller located in the middle and connected to the crushing motor and the driven rollers located on both sides of the driving roller.

1 and 2 , the grinding chamber 10 is equipped with a grinding bucket 2 and a grinding body 11 that match each other. The inner cavity of the grinding bucket 2 is in the shape of a truncated cone with a larger upper part and a smaller lower part. A number of first grinding teeth 2-1 extending obliquely upward are fixed on the inner wall of the grinding bucket 2. The side wall of the grinding body 11 is a round mesa that gradually shrinks from top to bottom. The upper end surface of the grinding body 11 is in an upward convex form, such as a cone or an upward convex arc surface, to avoid the accumulation of ore after crushing, but to facilitate the removal of ore from the grinding body. 11 The side wall slides down. A number of second grinding teeth 11-1 extending obliquely downward and matching the first grinding teeth 2-1 are fixed on the outer wall of the grinding body 11. There are several blanking holes 2-2 evenly distributed around the base of the grinding bucket 2. The bottom side of the grinding body 11 is mounted on the chassis of the grinding bucket 2 through a bearing mechanism and is drivingly connected to the grinding motor 12 fixedly installed on the bottom side of the box 1 .

The taper of the side wall of the grinding body 11 is inconsistent with the taper of the inner wall of the grinding bucket 2 to ensure that the distance between the grinding bucket 2 and the grinding body 11 gradually becomes smaller from top to bottom.

This embodiment also includes several discharge pipes 15 in the form of steel pipes that pass through the bottom side wall of the box 1 and are fixed to the bottom side wall of the box 1. The upper end of the discharge pipe 15 is connected to the discharge hole 2 -2 are connected in a one-to-one correspondence, and the lower ends are all deep into the material receiving container 14.

With reference to Figures 1 and 3, a fan room 7 is fixedly installed on the top of the box 1. A fan 17 is installed in the fan room 7. The air inlet end of the fan 17 is connected to the crushing chamber 9 through a dust collection pipe 8. In the dust collecting hood 5 inside, the air outlet end is connected to a dust exhaust pipe 16 with a dust exhaust port located outside the fan room 7 . The dust exhaust pipe 16 is connected to a dust adsorption water tank or pool through pipelines.

During use, the ore enters the crushing chamber 9 through the feed hopper 6 . The crushing roller 3 rotates to crush the fallen ore. The generated dust is sucked into the interior of the fan room 7 through the dust collecting hood 5 and the dust collecting pipe 8 with the help of the wind force of the fan 17, and is sent to the dust adsorption water tank or pool through the dust exhaust pipe 16. The dust adsorption water tank or pool is filled with There is water used to absorb dust, and the dust is absorbed by the water. The grinding motor 12 drives the grinding body 11 to rotate inside the grinding bucket 2. The crushed ore falls into the gap between the grinding bucket 2 and the grinding body 11, and gradually falls while being ground by the opposing teeth. The ground ore powder falls into the receiving container 14 through the discharge pipe 15. The dust generated by grinding the teeth is sucked away by the fan 17 through the gap between the crushing chamber 9 and the grinding chamber 10, and the dust is absorbed by the water in the adsorption water tank or pool.

Claims (5)

1. An ore crushing and grinding device, including a box (1) with a feeding hopper (6) installed at the upper end. A receiving container (14) is provided directly below the box (1). The box (1) 1) A crushing table (4) is fixedly installed inside. The space above the crushing table (4) in the box (1) serves as the crushing chamber (9), and the space below the crushing table (4) serves as Grinding chamber (10). The middle part of the crushing table (4) has a space connecting the crushing chamber (9) and the grinding chamber (10). A crushing roller (3) driven by a crushing motor is installed in this space. It is characterized by: The grinding chamber (10) is equipped with a grinding bucket (2) and a grinding body (11) that match each other; the inner cavity of the grinding bucket (2) is in the shape of a truncated cone with a large top and a small bottom. A number of first grinding teeth (2-1) are fixed on the top; the side wall of the grinding body (11) is a circular table surface that gradually shrinks from top to bottom, and the upper end surface of the grinding body (11) is in an upward convex form; the grinding body (11) ) are fixed on the outer wall with several second grinding teeth (11-1) that match the first grinding teeth (2-1); several blanking holes (2-2) are provided around the chassis of the grinding bucket (2) ); the bottom side of the grinding body (11) is mounted on the chassis of the grinding bucket (2) through a bearing mechanism and is drivingly connected to the grinding motor (12) fixedly installed on the bottom side of the box (1). 2. The ore crushing and grinding device according to claim 1, characterized in that: the ore crushing and grinding device further includes a device that passes through the bottom side wall of the box (1) and is connected to the bottom side box of the box (1). Several discharge pipes (15) with fixed walls, the upper end of the discharge pipe (15) communicates with the blanking hole (2-2) in one-to-one correspondence, and the lower end goes deep into the material receiving container (14) middle. 3. The ore crushing and grinding device according to claim 1, characterized in that the distance between the grinding bucket (2) and the grinding body (11) gradually becomes smaller from top to bottom. 4. The ore crushing and grinding device according to claim 1, characterized in that: the material receiving container (14) is a closed container and has a ventilation hole for balancing the internal air pressure, and a replaceable The filter is used to isolate dust. 5. The ore crushing and grinding device according to claim 1 or 2 or 3 or 4, characterized in that: a fan room (7) is fixedly installed on the top of the box (1), and a fan room (7) is installed in the fan room (7). Fan (17); the air inlet end of the fan (17) is connected to the dust collecting hood (5) located in the crushing chamber (9) through the dust collection pipe (8), and the air outlet end is connected to a dust exhaust port located there. The dust exhaust pipe (16) outside the fan room (7); the dust exhaust pipe (16) is connected to a dust adsorption water tank or pool through pipelines.